Film with outer layer composed of a polyamide composition

Abstract

A decorative film having an outer layer containing a polyamide composition with the following components: a) from 50 to 100 parts by weight of polyamide prepared from: α) from 70 to 100 mol % of diamine selected from m-xylylenediamine, p-xylylenediamine and mixtures thereof, β) from 0 to 30 mol % of other diamines having from 6 to 14 carbon atoms, and γ) from 70 to 100 mol % of aliphatic dicarboxylic acids having from 10 to 18 carbon atoms and δ) from 0 to 30 mol % of other dicarboxylic acids having from 6 to 9 carbon atoms, and b) from 0 to 50 parts by weight of another polyamide, where a) and b) total 100, having good chemicals resistance, good stress cracking resistance, improved scratch resistance, and improved gloss.

1 . A decorative film having an outer layer comprising a polyamide composition comprising the following components: 
 a) from 50 to 100 parts by weight of polyamide prepared from the following monomers: 
 α) from 70 to 100 mol % of a diamine selected from m-xylylenediamine, p-xylylenediamine and mixtures thereof,  
 β) from 0 to 30 mol % of other diamines having from 6 to 14 carbon atoms,  
 where the mol % data are based on the entirety of the diamines, and  
 γ) from 70 to 100 mol % of aliphatic dicarboxylic acids having from 10 to 18 carbon atoms and  
 δ) from 0 to 30 mol % of other dicarboxylic acids having from 6 to 9 carbon atoms,  
   where the mol % data are based on the entirety of the dicarboxylic acids; and    b) from 0 to 50 parts by weight of another polyamide,    where the parts by weight of a) and b) total 100.    
     
     
         2 . The decorative film according to  claim 1 , 
 wherein    component a) α) comprises at least 50% by weight of m-xylylenediamine and at most 50% by weight of p-xylylenediamine.    
     
     
         3 . A decorative film according to  claim 1 , 
 wherein    component a) α) comprises more than 50% by weight of p-xylylenediamine and less than 50% by weight of m-xylylenediamine.    
     
     
         4 . The decorative film according to  claim 1 , having only that outer layer.  
     
     
         5 . The decorative film according to  claim 1 , comprising a plurality of layers.  
     
     
         6 . The decorative film according to  claim 5 , 
 comprising    a color layer, a backing layer, and/or an adhesion-promoter layer.    
     
     
         7 . The decorative film according to  claim 6 , 
 wherein    the color layer and/or the backing layer comprise(s) a polyamide elastomer or an impact-modifying rubber.    
     
     
         8 . The decorative film according to  claim 1 , 
 wherein    its thickness is from 0.02 to 1.2 mm.    
     
     
         9 . The decorative film according to  claim 1 , 
 wherein    the thickness of the outer layer is from 0.01 to 0.5 mm.    
     
     
         10 . The decorative film according to  claim 1 , 
 wherein    it is produced via extrusion, coextrusion or lamination and is then, if appropriate, subjected to a forming process.    
     
     
         11 . A composite part comprising a film according to  claim 1  and a substrate.  
     
     
         12 . The composite part according to  claim 11 , in the form of a bodywork part of a motor vehicle, a constituent of the interior of a motor vehicle, cladding, a decorative strip, a cover strip, a panel or a decorative element.  
     
     
         13 . The composite part according to  claim 11 , in the form of sports equipment.  
     
     
         14 . The composite part according to  claim 11 , 
 wherein    it is produced via adhesive bonding, pressing, lamination, coextrusion, or reverse-coating by an injecting-molding, foaming or compression-molding method.